Object name: ARP221
ARP 221 is a triple galaxy in Hydra about 3.5 degrees southeast of Alphard, Hydra's lone 2nd magnitude star. Arp classified it as a galaxy with amorphous spiral arms making the comment: "Faint diffuse material to south, bright filament to hard image on NW side of nucleus." Sounds awkward but is the way he wrote it. Apparently, he was ignoring the two close companions though NED and others consider all three part of Arp 221. All three have the same redshift putting them 260 million light-years from us. It appears rather obvious the main galaxy has been highly disturbed causing the tidal plumes Arp called amorphous arms. NED classifies it as I0 Pec. It may have been a spiral. Is it interacting with one or both of its close companions or is it the result of a merger. I found nothing on it to help decide this question. The south end of the halo has a sharp, well-defined edge looking like a shell. These are usually a sign of a merger so I'm leaning in that direction. Also one or both of the "arms" (especially the on the NW side) may be the remains of its dinner showing the path it followed while being ripped apart. Another reason I favor the merger option.